Mr Keen forum posts in last 60 days

YellowHelmet said..
Maybe it would be an idea to find out a formula, algorithm with all the necessary input and output data.

If not possible by formula, then by neural network, some AI.

Maybe some savant mathematical member can do this.

Input :

- Weight.

- Volume of the board, maybe also width.

- Size of the sail (camber or not).

- Span and surface of the front foil = aspect ratio (maybe thickness and volume).

- Maybe size of the stabilizer.

- Take off wind speed.

- Pumping : no - lazy - active

- Resulting cruising speed.

- Salt / fresh water (salinity)

- Other ?

All with sliders, all dynamically interacting, selecting what input(s) are to be changed for what output(s), for example asking for a take off wind speed of 10 knots by changing span / surface of the front foil for a given board size and fixed sail, or asking for the sail size for a fixed board and foil.

An app would be nice.

I think in commercial airliners there is a stall alarm when the steering wheel starts to shake. If this can be calculated for air foils, such should be possible for water foils.

This should also be possible for wingfoil and even windsurfing, but for windsurfing the window of possible changes by sail and board size to start planing is much more narrow than for foiling.

Dreaming about a wishbone with stall alarm that wakes me up when it's time to start pumping.

Grantmac said..
The 909 is a VERY good foil. I'm winging it and am extremely tempted to get the WS fuselage for light wind days. You may wish to go up on the stab size, the 370 is very loose.

excav8ter said..




I should have reached out to you while we were there. We were on the beach at the end of the road. Basically between Chillo Chill glamping and Pro windsurf La Ventana. The wind was odd last week. Several of us struggled to get offshore because the wind was so light close to the beach. I tried winging for a few days but ended up too frustrated. I went and talked to Wyatt and he hooked me up with a board and basically an i76 foil on a 103cm mast. Had a blast overall, but that i76 foil was not great. Haha.

mr love said..
Agree, love my freeride / swell chasing windfoil, such fun. Will I wing?, quite possibly but not at the moment.